US3606418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural member
Assignee: Armco Inc
•
Filing: 1969-03-10
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Granted: 1971-09-20
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Expires: 1989-03-10
Abstract
Abstract A SINGLE UNIFORM STRUCTURAL MEMBER THAT MAY BE LAPPED ON A LIKE MEMBER TO FORM A STRUCTURALLY CONTINUOUS MEMBER CAPABLE OF CARRYING AXIAL AND FLEXURAL STRESSES.
Inventors
- 👤 Paul S Buker
- 👤 Richard D Shepard
- 👤 David P Wenaas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:38
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/04; E04C3/06; E04C3/07; E04B; E04B1/00; E04B1/38; E04B1/58; E04B1/5806; E04B1/5818; E04B7/00; E04B7/02; E04B7/022; E04B7/024; E04C2003/0404; E04C2003/0408; E04C2003/0421; E04C2003/0426; E04C2003/0434; E04C2003/0443; E04C2003/0452; E04C2003/0473; E04C2003/0482; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |